zeljko, 04.02.2013 10:35:
Edson Richter wrote:
Hi!
Assumptions: PostgreSQL 9.2.2, Win64, already run vacumm full freeze
analyze. No problems in the database. I know there are 1247 records to
be found.
Why does these queries return different results:
select count(*) from parcela
where id not in (select parcela_id from cadastroservicoparcela);
I'm always using
WHERE NOT id in (blabla) and never had such problems.
If blabla returns NULL values, then you will have problems eventually.
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